18 days late!!!

So I'm 18 days late, I usually have some strange periods, but I didn't have a period for the month of December, and still haven't started ... My boobs are kinda tender not to bad, I have some low cramping, I have been feel very fat the past 5 days, not like a bloated feeling like I'm just fat.....
I have been wanting some sweets to the point I see them and I eat them. On my period I don't like sweets ever. I've been kinda nauseous and felt like I'm gonna throw up. Also I pre every 10 minutes with 5 seconds to get to the bathroom before I piss myself. And I have white/clear discharge.. Also not popping very well...I don't want to take a test till I get some insight. Please help!!!